1209285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 2620800

約数和(自身を除く): 1411515

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 349, 385, 495, 693, 1047, 1155, 1745, 2443, 3141, 3465, 3839, 5235, 7329, 11517, 12215, 15705, 19195, 21987, 26873, 34551, 36645, 57585, 80619, 109935, 134365, 172755, 241857, 403095, 1209285]

約数ペア:

[(1, 1209285), (3, 403095), (5, 241857), (7, 172755), (9, 134365), (11, 109935), (15, 80619), (21, 57585), (33, 36645), (35, 34551), (45, 26873), (55, 21987), (63, 19195), (77, 15705), (99, 12215), (105, 11517), (165, 7329), (231, 5235), (315, 3839), (349, 3465), (385, 3141), (495, 2443), (693, 1745), (1047, 1155)]